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228 BOTANICAL GAZETTE [march 



potassium permanganate was brought about by plant peroxidases. 

 His conclusions, therefore, drawn from reactions which are common 

 to many organic substances and which are not known to be proper- 

 ties of peroxidases, are too sweeping for the experimental grounds 

 upon which they are based. 



Bureau of Plant Industry 



Washington, D.C. 





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